Concentrate cartridge



FIG. 1 is a perspective view of the present invention;

FIG. 2 is a side elevational view;

FIG. 3 is a top planar view;

FIG. 4 is a bottom planar view; and,

FIG. 5 is a cross sectional view taken along line 5--5 of FIG. 3. 

The ornamental design for a concentrate cartridge, as shown and described. 